tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/lodash/split.js b/tools/node_modules/eslint/node_modules/lodash/split.js
new file mode 100644
index 0000000000..956b48a15a
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/lodash/split.js
@@ -0,0 +1,52 @@
+var baseToString = require('./_baseToString'),
+    castSlice = require('./_castSlice'),
+    hasUnicode = require('./_hasUnicode'),
+    isIterateeCall = require('./_isIterateeCall'),
+    isRegExp = require('./isRegExp'),
+    stringToArray = require('./_stringToArray'),
+    toString = require('./toString');
+
+/** Used as references for the maximum length and index of an array. */
+var MAX_ARRAY_LENGTH = 4294967295;
+
+/**
+ * Splits `string` by `separator`.
+ *
+ * **Note:** This method is based on
+ * [`String#split`](https://mdn.io/String/split).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to split.
+ * @param {RegExp|string} separator The separator pattern to split by.
+ * @param {number} [limit] The length to truncate results to.
+ * @returns {Array} Returns the string segments.
+ * @example
+ *
+ * _.split('a-b-c', '-', 2);
+ * // => ['a', 'b']
+ */
+function split(string, separator, limit) {
+  if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
+    separator = limit = undefined;
+  }
+  limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
+  if (!limit) {
+    return [];
+  }
+  string = toString(string);
+  if (string && (
+        typeof separator == 'string' ||
+        (separator != null && !isRegExp(separator))
+      )) {
+    separator = baseToString(separator);
+    if (!separator && hasUnicode(string)) {
+      return castSlice(stringToArray(string), 0, limit);
+    }
+  }
+  return string.split(separator, limit);
+}
+
+module.exports = split;